Himeno has been featured in a fashion magazine! Could it be that she's working part-time as a model? Suspicion and wild ideas fill the minds of Nozomi and Kyoko, but what is the real story? Himeno's class visits a school for merfolk to participate in a joint class. The students of the two classes begin to build relationships as they interact throughout the day, but the highly unique merfolk students remain a source of intrigue.
You have to watch the nitrate levels, 
pH, temperature, and everything.
،عليك مراقبة مستوى النترات
.الهيدروجين، الحرارة، وكلّ شيء
Man muss auf Nitrat- und pH-Werte,
die Temperatur und so weiter achten.
Debes cuidar niveles de nitrato,
pH, temperatura y eso.
Debes vigilar los niveles de nitrato,
pH, temperatura y eso.
Faut faire attention à la température,
aux nitrates, au pH…
Bisogna controllare i livelli di nitrato, 
il pH, la temperatura e tutto quanto.
Você tem que cuidar do nível de nitrato,
pH, temperatura e tudo o mais.
Нужно следить за содержанием нитратов, 
pH, температурой.